730–1100nm Long Pass Optical Filter
The 730–1100nm Long Pass Optical Filteris designed to transmit
near-infrared wavelengths from730nm to 1100nmwhile effectively blocking shorter wavelengths.
With a defined730nm cut-on wavelength, this long pass filter
provides controlled spectral separation between visible and near-infrared light.
The filter is manufactured fromoptical glasswith a precisionoptical
thin-film coating, providing high transmission within the NIR passband and stable optical performance.
The precision optical surface and high coating uniformity make this filter suitable for integration into NIR imaging, optical detection, sensing and other precision optical systems.
Custom wavelengths, dimensions, shapes and thicknesses
are available for OEM and application-specific requirements.
The filter begins its designed transmission region around730nm,
providing effective separation between shorter wavelengths and the NIR region.
The specified transmission range extends from730nm to 1100nm,
making the filter suitable for near-infrared optical applications.
The filter is designed to suppress shorter wavelengths below the cut-on region, helping reduce unwanted visible-light interference.
The optical thin-film coating is designed to provide high transmission within the specified NIR passband.
Advanced thin-film coating technology provides controlled spectral filtering and high coating uniformity.
The filter uses a high-quality optical glass substrate suitable for precision optical assemblies.
The coated optical surface is designed to reduce unwanted
surface reflection and support efficient optical transmission.
Custom wavelengths, sizes, shapes and thicknesses can be supplied according to project requirements.
| Parameter | Specification |
|---|---|
| Product Name | 730–1100nm Long Pass Optical Filter |
| Product Type | Long Pass Optical Filter |
| Filter Type | Long Pass / Longpass |
| Transmission Range | 730–1100nm |
| Cut-On Wavelength | 730nm |
| Filter Function | Transmits NIR and blocks shorter wavelengths |
| Spectral Region | Near Infrared |
| Substrate | Optical Glass |
| Coating | Optical Thin-Film Coating |
| Transmission | High transmission in passband |
| Coating Uniformity | High uniformity |
| Surface | Precision Optical Grade |
| Surface Finish | Smooth precision optical surface |
| Surface Reflection | Low reflection |
| Optical Stability | High optical stability |
| Size | Custom Available |
| Shape | Custom Available |
| Thickness | Custom Available |
| Other Wavelengths | Custom Available |
| Application | NIR Imaging, Detection, Sensing, Optical Instruments |
A long pass optical filter is designed to transmit wavelengths longer
than its cut-on wavelength while suppressing shorter wavelengths.
For this product:
Cut-On Wavelength: 730nm
Transmission Range: 730–1100nm
Filter Function: Transmit NIR / Block Shorter Wavelengths
This spectral response allows the filter to reduce unwanted shorter-wavelength light while transmitting the desired near-infrared region.
The filter is therefore suitable for optical systems where NIR spectral selection is required.
The filter provides a defined transmission region from730nm to 1100nmfor near-infrared optical systems.
The 730nm cut-on wavelength provides a practical spectral boundary between shorter wavelengths and the NIR transmission region.
The precision thin-film coating is designed to provide high transmission throughout the specified passband.
Blocking shorter wavelengths can help reduce unwanted visible-light components entering the optical system.
Uniform coating across the optical surface supports consistent spectral performance.
The optical coating is designed to minimize surface reflection and improve optical throughput.
The optical glass substrate and precision coating structure provide reliable performance for precision optical assemblies.
Suitable for imaging systems that operate in the near-infrared region and require suppression of shorter wavelengths.
Can be used in optical detection systems requiring controlled transmission of 730–1100nm light.
Suitable for NIR sensors and optical sensing systems requiring long-pass spectral filtering.
Can be integrated into machine vision systems using near-infrared illumination or detection.
Suitable for optical instruments requiring separation of visible and NIR spectral regions.
Can be used in customized camera and imaging assemblies requiring NIR wavelength selection.
Suitable for analytical optical systems where unwanted shorter wavelengths need to be reduced.
Can be used in research, laboratory and testing equipment requiring NIR spectral control.
We support customized long pass optical filters for different optical system requirements.
The standard configuration is730–1100nm, while other long pass wavelength ranges can be produced according to customer requirements.
Different optical assemblies may require different mechanical dimensions.
We can support custom:
Diameter + Length + Width + Thickness + Shape
according to technical drawings or application requirements.
For an accurate quotation, please provide:
Cut-On Wavelength + Passband + Blocking Requirement + Size + Thickness + Shape + Quantity + Application
Example:
Cut-On: 730nm + Passband: 730–1100nm + Size: Ø25.4mm + Thickness: Custom + Quantity: 100 pcs
Customers can also provide a technical drawing, required spectral curve or existing sample for engineering evaluation.
A typical manufacturing workflow includes:
Optical Glass Selection → Cutting → Grinding → Precision Polishing →
Cleaning → Thin-Film Coating → Spectral Testing →
Surface Inspection → Dimensional Inspection → Final QC → Protective Packaging
Coating and production parameters can be customized according to the required optical performance.
Quality inspection can include:
Final inspection criteria can be established according to customer specifications.
Each optical filter can be individually protected against:
Packaging options are available for:
Custom labeling and OEM packaging are also available.
The specified transmission range is730–1100nm.
The cut-on wavelength is730nm.
It is designed to transmit wavelengths longer than approximately
730nm while suppressing shorter wavelengths.
Yes. The 730–1100nm transmission range is within the near-infrared optical region.
The filter uses anoptical glass substrate.
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